$h: 90px;
.cgnavsub{
    position: relative;height: $h;border-bottom: 1px solid #F3F3F3;padding-right: 60px;
    .scrollview{height: $h;white-space:nowrap;}
    .nav{display: inline;padding: 0 20px;line-height: $h;}
    .arrow-down{position: absolute;right: 0;top: 0;width: 60px;line-height: $h;transition: all 0.2s;
        .iconfont{font-size: 40px;}
    }
    .arrow-down.up{transform-origin: 50% 45%;transform:rotate(180deg);transition: all 0.2s;}
    .arrow-down-list{padding: 10px;position: absolute;left: 0;right: 0;top: $h;background-color: #fff;z-index: 10;box-shadow: 2px 2px 10px rgba(0,0,0,.2);border-radius: 10px;
        .weui-grids,.weui-grid{border: none;}
        .weui-grid{padding: 10px;}
        .item-tag{padding: 5px 0;border: 1px solid #eee;background-color: #f5f5f5;border-radius: 10px;}
        .item-tag.active{border-color: #f00;border-color: #f00;}
    }
}